I've seen willow oak before but don't remember ever cutting it. When I cut the first section of that trunk I was amazed at how beautiful the grain is.
That is indeed a good find. Good for the lady who got them out of her yard, and good for you for the fuel to keep you warm.
Got about 1/3 of it split and stacked. The rest disappeared into the rounds pile with a couple more loads on top of them. She was definitely happy to see them go. Still have to go back and grab the stump flare and another section of trunk. We had an issue with the trailer and life has just been busy. Hoping to get over there today or tomorrow.